/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #4F46E5;
  --primary-light: #6366F1;
  --primary-dark: #3730A3;
  --accent: #06B6D4;
  --bg: #F9FAFB;
  --bg-white: #FFFFFF;
  --text: #111827;
  --text-light: #6B7280;
  --text-lighter: #9CA3AF;
  --border: #E5E7EB;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.1);
  --radius: 12px;
  --transition: .3s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.4rem; font-weight: 700; color: var(--primary);
}

.logo-icon {
  width: 38px; height: 38px; border-radius: 10px;
  overflow: hidden; flex-shrink: 0;
}
.logo-icon img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 10px;
}

.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: .95rem; font-weight: 500; color: var(--text-light);
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--primary);
  transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-cta {
  background: var(--primary) !important; color: #fff !important;
  padding: 10px 24px !important; border-radius: 8px;
  font-weight: 600 !important; font-size: .9rem !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--primary-dark) !important; }

/* Mobile menu */
.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 32px; height: 32px; flex-direction: column; justify-content: center; gap: 5px;
}
.menu-toggle span {
  display: block; width: 24px; height: 2px; background: var(--text);
  transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 10px; font-weight: 600;
  font-size: 1rem; cursor: pointer; border: none;
  transition: all var(--transition);
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #0891B2; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: #F3F4F6; transform: translateY(-2px); }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }

/* ===== Section ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 {
  font-size: 2.4rem; font-weight: 800; margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p { color: var(--text-light); font-size: 1.15rem; max-width: 600px; margin: 0 auto; }

/* ===== Hero ===== */
.hero {
  padding: 80px 0 100px;
  background: linear-gradient(160deg, #EEF2FF 0%, #E0F2FE 50%, #F0FDFA 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -200px; right: -200px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,.08), transparent 70%);
}
.hero .container {
  display: flex; align-items: center; gap: 60px;
}
.hero-content { flex: 1; }
.hero-content h1 {
  font-size: 3.2rem; font-weight: 800; line-height: 1.2; margin-bottom: 24px;
}
.hero-content h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p { font-size: 1.2rem; color: var(--text-light); margin-bottom: 36px; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { flex: 1; display: flex; justify-content: center; }
.hero-img {
  width: 100%; max-width: 520px; border-radius: 20px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}
.hero-mockup {
  width: 100%; max-width: 480px;
  background: var(--bg-white); border-radius: 20px;
  box-shadow: var(--shadow-lg); padding: 32px;
  border: 1px solid var(--border);
}
.mockup-bar {
  display: flex; gap: 8px; margin-bottom: 24px;
}
.mockup-dot { width: 12px; height: 12px; border-radius: 50%; }
.mockup-dot:nth-child(1) { background: #EF4444; }
.mockup-dot:nth-child(2) { background: #F59E0B; }
.mockup-dot:nth-child(3) { background: #22C55E; }
.mockup-input {
  background: var(--bg); border-radius: 12px; padding: 20px;
  margin-bottom: 16px; min-height: 80px;
  font-size: .95rem; color: var(--text-light);
  border: 1px solid var(--border);
}
.mockup-output {
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  border-radius: 12px; padding: 20px; min-height: 80px;
  font-size: .95rem; color: var(--primary-dark);
  border: 1px solid rgba(79,70,229,.15);
}
.mockup-lang {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; font-size: .85rem; font-weight: 600; color: var(--text-light);
}
.mockup-lang span { background: var(--bg); padding: 6px 16px; border-radius: 8px; }
.mockup-arrow { color: var(--primary); font-size: 1.2rem; }

/* ===== Features ===== */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.feature-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 36px;
  border: 1px solid var(--border); transition: all var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  color: var(--primary); overflow: hidden;
}
.feature-icon img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 14px;
}
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-light); font-size: .95rem; line-height: 1.7; }

/* ===== Stats ===== */
.stats {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 60px 0;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; color: #fff;
}
.stat-item h3 { font-size: 2.8rem; font-weight: 800; margin-bottom: 8px; }
.stat-item p { font-size: .95rem; opacity: .8; }

/* ===== Pricing ===== */
.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; align-items: start;
}
.pricing-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 40px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition); position: relative;
}
.pricing-card.popular {
  border-color: var(--primary); transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(79,70,229,.15);
}
.pricing-card.popular .badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: 6px 20px;
  border-radius: 20px; font-size: .8rem; font-weight: 600;
}
.pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.pricing-card.popular:hover { transform: scale(1.05) translateY(-6px); }
.pricing-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.pricing-card .price {
  font-size: 3rem; font-weight: 800; color: var(--primary); margin: 20px 0;
}
.pricing-card .price span { font-size: 1rem; font-weight: 500; color: var(--text-light); }
.pricing-card .desc { color: var(--text-light); font-size: .9rem; margin-bottom: 28px; }
.pricing-features { text-align: left; margin-bottom: 32px; }
.pricing-features li {
  padding: 10px 0; font-size: .95rem; color: var(--text-light);
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
}
.pricing-features li:last-child { border: none; }
.pricing-features .check { color: var(--primary); font-weight: 700; }
.pricing-card .btn { width: 100%; justify-content: center; }

/* ===== Download ===== */
.download-hero {
  background: linear-gradient(160deg, #EEF2FF, #E0F2FE, #F0FDFA);
  padding: 80px 0 60px; text-align: center;
}
.download-hero h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; }
.download-hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.download-hero p { color: var(--text-light); font-size: 1.15rem; max-width: 560px; margin: 0 auto 40px; }

.download-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.download-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 40px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition);
}
.download-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.download-card .os-icon {
  width: 72px; height: 72px; margin: 0 auto 20px;
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  border-radius: 18px; display: flex; align-items: center; justify-content: center;
  font-size: 2rem; color: var(--primary);
}
.download-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.download-card .version { color: var(--text-lighter); font-size: .85rem; margin-bottom: 6px; }
.download-card .size { color: var(--text-light); font-size: .9rem; margin-bottom: 24px; }
.download-card .btn { width: 100%; justify-content: center; }

.system-req {
  background: var(--bg-white); border-radius: var(--radius); padding: 40px;
  border: 1px solid var(--border); margin-top: 48px;
}
.system-req h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 20px; }
.req-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.req-item h4 { font-size: .95rem; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
.req-item p { font-size: .9rem; color: var(--text-light); line-height: 1.6; }

/* ===== About ===== */
.about-hero {
  background: linear-gradient(160deg, #EEF2FF, #E0F2FE, #F0FDFA);
  padding: 80px 0 60px; text-align: center;
}
.about-hero h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; }
.about-hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.about-hero p { color: var(--text-light); font-size: 1.15rem; max-width: 600px; margin: 0 auto; }

.story-section { display: flex; gap: 60px; align-items: center; }
.story-content { flex: 1; }
.story-content h2 { font-size: 2rem; font-weight: 800; margin-bottom: 20px; color: var(--primary); }
.story-content p { color: var(--text-light); font-size: 1.05rem; line-height: 1.8; margin-bottom: 16px; }
.story-image {
  flex: 1; background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  border-radius: 20px; min-height: 360px;
  display: flex; align-items: center; justify-content: center;
  font-size: 4rem; color: var(--primary);
}

.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.value-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 36px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition);
}
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.value-card .icon {
  width: 64px; height: 64px; margin: 0 auto 20px;
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  border-radius: 16px; display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: var(--primary);
}
.value-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.value-card p { color: var(--text-light); font-size: .95rem; line-height: 1.7; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.team-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 32px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition);
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.team-avatar {
  width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.6rem; font-weight: 700;
}
.team-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 4px; }
.team-card .role { color: var(--primary); font-size: .85rem; font-weight: 600; margin-bottom: 10px; }
.team-card p { color: var(--text-light); font-size: .85rem; }

/* ===== Contact ===== */
.contact-hero {
  background: linear-gradient(160deg, #EEF2FF, #E0F2FE, #F0FDFA);
  padding: 80px 0 60px; text-align: center;
}
.contact-hero h1 { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; }
.contact-hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.contact-hero p { color: var(--text-light); font-size: 1.15rem; max-width: 560px; margin: 0 auto; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-form { background: var(--bg-white); border-radius: var(--radius); padding: 40px; border: 1px solid var(--border); }
.contact-form h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .9rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 14px 16px; border-radius: 10px;
  border: 1px solid var(--border); font-size: .95rem;
  font-family: inherit; background: var(--bg);
  transition: border var(--transition);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.contact-info { display: flex; flex-direction: column; gap: 24px; }
.info-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 28px;
  border: 1px solid var(--border); display: flex; gap: 16px; align-items: flex-start;
  transition: all var(--transition);
}
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.info-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; color: var(--primary);
}
.info-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.info-card p { color: var(--text-light); font-size: .9rem; line-height: 1.6; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white); border-radius: var(--radius); padding: 24px 28px;
  border: 1px solid var(--border); margin-bottom: 16px;
  cursor: pointer; transition: all var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; font-size: 1.05rem;
}
.faq-question .arrow { transition: transform var(--transition); color: var(--primary); font-size: 1.2rem; }
.faq-item.open .arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .4s ease;
  color: var(--text-light); font-size: .95rem; line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 300px; padding-top: 16px; }

/* ===== How It Works ===== */
.steps-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
  position: relative;
}
.steps-grid::before {
  content: ''; position: absolute; top: 52px; left: 16%; right: 16%;
  height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: .2; z-index: 0;
}
.step-card {
  text-align: center; position: relative; z-index: 1;
}
.step-number {
  width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 1.4rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 15px rgba(79,70,229,.3);
}
.step-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.step-card p { color: var(--text-light); font-size: .95rem; line-height: 1.7; max-width: 300px; margin: 0 auto; }
.step-visual {
  width: 100%; height: 160px; border-radius: 16px; margin-bottom: 24px;
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; border: 1px solid var(--border);
  transition: all var(--transition); overflow: hidden;
}
.step-visual img {
  width: 100%; height: 100%; object-fit: cover;
}
.step-card:hover .step-visual { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ===== Scenarios ===== */
.scenarios-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.scenario-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 32px 24px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition); cursor: default;
}
.scenario-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.scenario-icon {
  width: 72px; height: 72px; border-radius: 20px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; overflow: hidden;
  transition: all var(--transition);
}
.scenario-icon img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 20px;
}
.scenario-card:nth-child(1) .scenario-icon { background: #EEF2FF; }
.scenario-card:nth-child(2) .scenario-icon { background: #FEF3C7; }
.scenario-card:nth-child(3) .scenario-icon { background: #ECFDF5; }
.scenario-card:nth-child(4) .scenario-icon { background: #FEE2E2; }
.scenario-card:nth-child(5) .scenario-icon { background: #F3E8FF; }
.scenario-card:nth-child(6) .scenario-icon { background: #E0F2FE; }
.scenario-card:nth-child(7) .scenario-icon { background: #FFF7ED; }
.scenario-card:nth-child(8) .scenario-icon { background: #F0FDFA; }
.scenario-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.scenario-card p { color: var(--text-light); font-size: .85rem; line-height: 1.6; }

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.testimonial-card {
  background: var(--bg-white); border-radius: var(--radius); padding: 32px;
  border: 1px solid var(--border); transition: all var(--transition);
  display: flex; flex-direction: column;
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-stars { color: #F59E0B; font-size: 1rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-text {
  color: var(--text); font-size: .95rem; line-height: 1.8;
  flex: 1; margin-bottom: 24px; font-style: italic;
}
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 48px; height: 48px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; font-size: 1rem; overflow: hidden;
}
.testimonial-avatar img {
  width: 100%; height: 100%; object-fit: cover;
}
.testimonial-card:nth-child(1) .testimonial-avatar { background: linear-gradient(135deg, #6366F1, #8B5CF6); }
.testimonial-card:nth-child(2) .testimonial-avatar { background: linear-gradient(135deg, #06B6D4, #14B8A6); }
.testimonial-card:nth-child(3) .testimonial-avatar { background: linear-gradient(135deg, #F59E0B, #EF4444); }
.testimonial-card:nth-child(4) .testimonial-avatar { background: linear-gradient(135deg, #EC4899, #8B5CF6); }
.testimonial-card:nth-child(5) .testimonial-avatar { background: linear-gradient(135deg, #10B981, #3B82F6); }
.testimonial-card:nth-child(6) .testimonial-avatar { background: linear-gradient(135deg, #F97316, #EF4444); }
.testimonial-info h4 { font-size: .95rem; font-weight: 600; }
.testimonial-info p { font-size: .8rem; color: var(--text-lighter); }

/* ===== Partners / Trust ===== */
.partners-section { background: #fff; padding: 60px 0; }
.partners-logos {
  display: flex; align-items: center; justify-content: center;
  gap: 48px; flex-wrap: wrap;
}
.partner-logo {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 28px; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--border);
  font-size: 1rem; font-weight: 700; color: var(--text-light);
  transition: all var(--transition); white-space: nowrap;
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.partner-logo .p-icon {
  width: 36px; height: 36px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; overflow: hidden;
}
.partner-logo .p-icon img {
  width: 100%; height: 100%; object-fit: contain;
}

/* ===== Platform Showcase ===== */
.platform-showcase {
  display: flex; align-items: center; gap: 60px;
}
.platform-content { flex: 1; }
.platform-content h2 {
  font-size: 2.2rem; font-weight: 800; margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.platform-content p { color: var(--text-light); font-size: 1.05rem; line-height: 1.8; margin-bottom: 16px; }
.platform-list { margin: 24px 0 32px; }
.platform-list li {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0; font-size: .95rem; color: var(--text);
}
.platform-list .li-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, #EEF2FF, #E0F2FE);
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; color: var(--primary); flex-shrink: 0;
}
.platform-visual {
  flex: 1; display: flex; flex-direction: column; gap: 20px;
}
.platform-card-row { display: flex; gap: 20px; }
.platform-mini-card {
  flex: 1; background: var(--bg-white); border-radius: 16px; padding: 28px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition);
}
.platform-mini-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.platform-mini-card .pm-icon { font-size: 2rem; margin-bottom: 10px; }
.platform-mini-card h4 { font-size: .9rem; font-weight: 600; margin-bottom: 4px; }
.platform-mini-card p { font-size: .75rem; color: var(--text-lighter); }

/* ===== Responsive additions ===== */
@media (max-width: 1024px) {
  .scenarios-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-showcase { flex-direction: column; }
  .steps-grid::before { display: none; }
}
@media (max-width: 768px) {
  .steps-grid { grid-template-columns: 1fr; gap: 32px; }
  .scenarios-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .platform-card-row { flex-direction: column; }
  .partners-logos { gap: 16px; }
  .partner-logo { padding: 12px 20px; font-size: .85rem; }
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 80px 0; text-align: center; color: #fff;
}
.cta-section h2 { font-size: 2.4rem; font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 1.15rem; opacity: .85; margin-bottom: 36px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
footer {
  background: #111827; color: #D1D5DB; padding: 64px 0 0; margin-top: auto;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid #1F2937;
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo-icon { border-radius: 10px; }
.footer-brand p { font-size: .9rem; line-height: 1.7; color: #9CA3AF; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: .95rem; font-weight: 600; margin-bottom: 20px; }
.footer-col a { display: block; padding: 6px 0; font-size: .9rem; color: #9CA3AF; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0; font-size: .85rem; color: #6B7280;
}
.footer-social { display: flex; gap: 16px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 8px; background: #1F2937;
  display: flex; align-items: center; justify-content: center;
  color: #9CA3AF; font-size: .9rem; transition: all var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container { flex-direction: column; text-align: center; }
  .hero-content p { margin: 0 auto 36px; }
  .hero-buttons { justify-content: center; }
  .features-grid, .pricing-grid, .download-cards { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .story-section { flex-direction: column; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .req-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; padding: 24px; gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }
  .hero-content h1 { font-size: 2.2rem; }
  .section { padding: 64px 0; }
  .section-header h2 { font-size: 1.8rem; }
  .features-grid, .pricing-grid, .download-cards, .values-grid { grid-template-columns: 1fr; }
  .pricing-card.popular { transform: none; }
  .pricing-card.popular:hover { transform: translateY(-6px); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}